Valve structure for acetylene-lamps and the like



G. R. SHANKLIN. VALVE STRUCTURE FOR ACETYLENE LAMPS AND THE LIKE.

APPLICATION FILED MAY 1| 1918.

Patented Mar. 23, 1920.

UNITED sTATEs N r ...w-Wc... N W..-

TnnT onirica.

oneness.. siIANKnIN, or srniiverintn, ILLINOIS.

t VALVE STRUCTURE FOR ACETYLENE-LMPS AND THE `LIIKJ- To all whom it may concern:

Be it known that I, GEORGE R. SHANK- LIN, a citizen of the United States, residing at Springfield, in the county of Sangamon and State of Illinois, have invented certain new `and useful Improvements in calcium carbid in acetylene lamps and equivalent devices. It has for its object the production ofa simple and efective valve device `for the purposestated, which is not 3 3 of Fig. 5.

liable to clog up with use but is reliable and durable inits operation. c

To this end my invention consists in the novel construction, arrangement and combination of parts herein shown :and described, and more particularly pointed out in the claims.

In the drawings, wherein like reference characters indicate like or corresponding parts,

Figure 1 is a vertical section of a miners acetylene lamp"n equipped with my invention'; i

.Fig. 2 is an enlarged vertical section of the lower end of the tube. and a valve cooperatingtherewith.

Fig. 3, isa transverse section `on the line 5-5 of Fig. 2. 1 Fig. Il is a transverse section on lines 6-6 of Fig. 2. i y

Fig. 5, is a vertical section of a slightly different form of tube and valve mecha.- nism.l g 1 v 1 Fig. 6 `is a transverse section on the line In the drawings, 1 is the upper part of a water chamber of a miners'lamp of the character described, provided with the` filling opening 3 havingfa cover or cap 4. A centrally disposed tube 5 extendsfroin the top oit' the chamber 1. downward through the bottom 6, and a `considerable distance into the carbid chamber 7. As is"usual in devicesof this kind, the shell or. chamber 1 is provided with a depending screw threaded section` 8 which is engaged by a coperating section 9 on the carbid chain- 'ber 9 N The lQWer end of the tube 5 is formed with valve .Seat 1,0 ,De the end thereof.

Specification of Letters Patent. Patentd llllll. 23, 1920. Application filed May 7, 1918. i Serial No. 233,020.l

A section 11 has formed uponits upper face a cooperating part adapted to seat upon the, valve seat 10i. The lower end of' the section 11, as at 13, has also formed upon ita valve scat arranged to coperate with the valve 14. A valve stem 15 carried upon the top of the water chamber 1 looselv extends within the tube 5 and the section 11,and is firmly attached to the valve 11i. The upper portion of the valve stein .is preferably `bent as at 16 to form a convenient handle by means of which thevalve stem can `be rotated. The stem is `carried by la sleeve 17, for movement therewith, said `sleeve being screw threaded into the upper end of the tube 5 as at 18. It will be readily seen that upon rotating the valve stem 15,the valve 14 will `be fcaused to approach or recede from lthe end of the tube 5.` The valve Estem loosely passing through the section 11, permits said section to readily leave the seat 1() as the steinis rotated to open the gvalve. At the same time said section resting loosely on the valve, readily permits the. escape of the Huid also by the seat at 13, where said valve 1d engages therewith. It will be seen that when the `valve is open the fluid readily escapes, both at the point 10M-12 and at Jthe point 12S-lll. The fluid enters the tube through openings formed therein as at 19.`

`As thus described the device is substantially the same as that illustrated in `the patent heretofore issued to F. Guy, No. 1,198,537. y

My improvement upon this forni of; de-

vice consists in combination of an inclosing sleeve 20 rigidly securedto the section 11, and within which the valve 14 is loosely positioned so as to `readily rotate therein.

`The lower end ofthe sleeve eXtendswell below `the lower face of the valve, and as the valvestern extends loosely through said section, the rotation of the 4valve stern `is not transmitted to` said section and sleeve. Therefore, the movement `of the valve `does not agitate or afl'ect the carbid withinthe chamber 7 the sleeve constituting a Ihousing or protecting medium for the valve," and the sleeve being adapted to rest upon `the carbid spaced fromthebottom of the `eontainer, `and offering substantially no lateral obstruction beyond the wall of thetube 19. :The sleeve does not prevent the ready eseapeof the `water between. the valve and seat i?, norbetveen the `upper @ed @t the section 11 and its seat 10. In that embodiment of the invention illustrated in Figs. 1 to l inclusive,'the sleeve 20 is eX- tended upward above the. section y11 as at 21, while preferably slotted apertures 22 are formed in the sleeve in line with the-meeting of the upper edge of said section, and its valve seat 10, with apertures 23 likewise formed in line with this point of contact of lthe valve ltwith the valve seat 13 on the lower end of said section. The vslots 23 v may be dispensed with if desired although preferred, but if the sleeve extends above the point IZIO, itis desirable'to form slots orequivalent openings inthe sleeve to permit the fluid to escape therethrough.

vrIhis form ofthe invention. has certain advantages in addition to those represented by that embodiment of the ,invention illustrated in Figs.. 5z and 6, injwhich theiupward extension ofthe sleeve 11 is' dispensed with.y In bothforms of construction, in operation, assuming 'that the sleeve' V20 rests upon vthe bed of carbid, the effect will be simplyto allow thevalve to descend slightly within the sleeve'without in any way moving or agitating the latter. In such case, the section 11 may or may not descend sufficiently to allow Huid' to escape to any material extent between the section 11 and `seat 10. If the sleevey E20 is not firmly seated upon the carbid,'it,together with the section 11 to which it is attached, will drop slightly by force of gravity permitting the fluid to escape at both ends ofthe section 1l. The operator when he removes the bottom 7 of the carbid container for a fresh l Y supply offcalcium carbid may' with his thumb and finger rotate the section 11 and sleeve 20, thus `serving to freev the valve and itsconnected parts as well as the valve seats fromn vall ofthe accumulation of theslacked carbid.

vHaving thus described my inventioinit is obvious :that various immaterial modifica- Y "tions Amay, be in-adein the same withoutdeparting from thespirit vof ,my` invention,

' Yhence I 'do not wish to beunderstood as limi 'iting 'myself to the exact'form, construction,

arrangement and combination of parts herein shown and described or fuses mentioned. What I claim as new anddesire to secure by `Letters Patent is: f

j In a device' ofy the lrind described, verticalv Huid tube provided with a valve seat upon its' lower. end, anda loosely seated secv tion having a cooperating valve face upon tical tube adapted to convey liquid and having formed upon its free end a valve seat,

.lowerend and a de )ending sleeve secured toV said section and extending below the valve, in combination with a valve stem loosely positioned within the tube and section and carrying upon its free end a valve formed to be loosely positioned within the sleeve and operable with the valve seat upon the end of said section, substantially as described.

3. `In a device of the kind described, a dcpending fluid tube having a valve seat formed upon the free end thereof, a cooperating section therefor having a valve face formed upon its upper en'd arranged to cooperate with said seat', and having its lower end provided with a valve seat, and a sleeve secured to said section and extending both above and below the same, loosely embracing the tube i and provided with openings therein substantially in line with the meeting o-f the upper end of said section with the lower end of the tube, in combination with a rotatable valve stein loosely positioned within the tube, and said section, and provided upon its free end` with a valve 111 rotatable within Vthe sleeve and adapted to cooperate with the valve seat upon the lower end of the sleeve, substantially as described.

4. A deviceA of the hind described comprising` a depending tube provided with a valve seat upon its lower end, a cooperating section therefor having a value face upon its upper end for said valve seat, and a valve seat upon its lower end, and a sleeve secured to said section and extending both vabove and below the same, in combination with a rotatable valve stein located within the tubeand loosely extending through said section, provided upon its free' end with a valve arranged to cooperate with the valve seat on said section, said sleeve loosely einbracingboth the tube and valve and projecting a substantial distance below the latter whereby the valve offers no obstruction beyond the lower edge of the sleeve. f5. In a device of the kind described, a 'vertical fluid tube, a valve stem loosely projecting through the tube and terminating at its lower endV in a valve part, the valve stem having connected thereto a threaded part, and the tube having a cooperating threaded support for said stem, the lower end of the tubev forming a valve seat, a tubular valveI section sleeved upon the valve stem and having an upper valve face to cooperate with the seat4 at the lower end of the tube, said tubular valve section forming at its lower end a valve seat for the valve part at the lower end of the stem, and Ameans supported wholly from said tubular valve section to rest upon carbid or the like, and space the valve therefrom, comprising a sleeve secured to the tubular valve section and of a length to project a substantial distance below the valve, with no parts of the latter offering' an obstruction beyond the lower edge of said sleeve. e

6. In a. device of. the kind described, the combination of a vertical tube adapted to coniey liquid to carbid, said tube being; stationary and terminating at its lower end in a valve seat, a valve stem mounted `for rotatable and lengthwise `movement loosely j )rojectingthrough said tube andterminat- :ing at its lower end in a valve spaced below said valve seat, a valve section positioned on the stem and interposed between the valve seat oil the tube and said valve, and a tubular member secured to said valve section overlying the side of the valve stem and projecting a suiiicient distance below the valve to space the same from the carbid, the valve section and sleeve being; fixed to one another and adapted to be subjected to rotatable upon the valve seat on said section, and offering no lateral projection beyond said section, and a depending tubular sleeve secured ,to said v'section and loosely inclosing the valve, said sleeve having an open end and projecting downwardly below the valve and spaced upwardly from the base of the container.

8. Ina device of the kind described, a container, a vertical iuid tube depending from the top of the container and provided with a valve seat upon its lower end, a loosely seated section of substantially the same diameter as the tube having` a valve face upon its upper end to engage the valve seat of the fluid tube, and said section having' a. valve seat on its lower end, in combination with a rotatable valve stem having a valve upon the lower end thereof adapted to seat upon the valve seat of said section and offering' no substantial lateral projection beyondl said section, and a dependingr tubular sleeve secured to said section, and loosely inclosing the valve, said sleeve having an open end and projecting downwardly below the valve and spaced upwardly from the base of the container, and said sleeve also having peripheral openings adjacent the top and bottom` of said section.

In testimony whereof, I have hereunto signed my name in the presence of two subscribinpl witnesses'.

- GEORGE It. SHANKLIN.

Witnesses j E. M. SHANKLIN, J. S. CALDWELL. 

